257272020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{62143}}^1$

素因数の和:62181

約数の個数: 72

約数和(自身を含む): 814334976

約数和(自身を除く): 557062956

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 60, 69, 90, 92, 115, 138, 180, 207, 230, 276, 345, 414, 460, 690, 828, 1035, 1380, 2070, 4140, 62143, 124286, 186429, 248572, 310715, 372858, 559287, 621430, 745716, 932145, 1118574, 1242860, 1429289, 1864290, 2237148, 2796435, 2858578, 3728580, 4287867, 5592870, 5717156, 7146445, 8575734, 11185740, 12863601, 14292890, 17151468, 21439335, 25727202, 28585780, 42878670, 51454404, 64318005, 85757340, 128636010, 257272020]

約数ペア:

[(1, 257272020), (2, 128636010), (3, 85757340), (4, 64318005), (5, 51454404), (6, 42878670), (9, 28585780), (10, 25727202), (12, 21439335), (15, 17151468), (18, 14292890), (20, 12863601), (23, 11185740), (30, 8575734), (36, 7146445), (45, 5717156), (46, 5592870), (60, 4287867), (69, 3728580), (90, 2858578), (92, 2796435), (115, 2237148), (138, 1864290), (180, 1429289), (207, 1242860), (230, 1118574), (276, 932145), (345, 745716), (414, 621430), (460, 559287), (690, 372858), (828, 310715), (1035, 248572), (1380, 186429), (2070, 124286), (4140, 62143)]